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301 Stainless Steel Belleville Washers

Belleville washers are unique, conical shaped washers recommended for use in problematic or critical bolting applications. Their conical shape affords a high spring rate over a short deflection to retain the proper bolting stress in a variety of conditions. The loss of a sound bolted connection can lead to fugitive emissions, cause equipment failure, or catastrophic events. Belleville washers can eliminate bolted joint failures due to a variety of causes:

High-temperature bolt yield
Differential thermal expansion
Packing or gasket relaxation or creep
Vibration
Thermal cycling
High cycle applications

301 Stainless Steel Belleville Washers are a common, economical solution to maintain the integrity of bolted connections in a variety of applications.

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Mechanical Properties
Chemical Properties
Dimensional Specifications

Dimensional Specifications

Dimensional Specifications301 Stainless Steel Belleville Washer

301 Stainless Steel Belleville Washer dimensions

STS Part Number	Diameter	Belleville Type	Raw Material	ID	OD	T	H	h	Load Rating	Load Rating lbs or N
STS Part Number	Diameter	Belleville Type	Raw Material	ID	OD	Thickness	Height	Deflection	Load Rating	Load Rating lbs or N
WBEL006L15301-PRESET	#6	Light	301 Stainless Steel	0.1380	0.2810	0.0150	0.0210	0.0060	73	lbs
WBEL010S20301	#10	Standard	301 Stainless Steel	0.1950	0.3750	0.0200	0.0300	0.0060	112	lbs
WBEL025-8-18-301	1/4	Standard	301 Stainless Steel	0.2550	0.5000	0.0180	0.0340	0.0120	70	lbs
WBEL025-8-25-301-PRESET	1/4	Standard	301 Stainless Steel	0.2550	0.5000	0.0250	0.0380	0.0100	160	lbs
WBEL025-8-38-301	1/4	Standard	301 Stainless Steel	0.2550	0.5000	0.0380	0.0470	0.0060	400	lbs
WBEL025-8-38-301-PRESET	1/4	Standard	301 Stainless Steel	0.2550	0.5000	0.0380	0.0470	0.0090	400	lbs
WBEL025S35301	1/4	Standard	301 Stainless Steel	0.2660	0.4690	0.0420	0.0530	0.0060	550	lbs
WBEL025L42301	1/4	Light	301 Stainless Steel	0.2580	0.5630	0.0420	0.0720	0.0120	600	lbs
WBEL025M52301	1/4	Medium	301 Stainless Steel	0.2580	0.6880	0.0500	0.0900	0.0130	650	lbs
WBEL025H61301	1/4	Heavy	301 Stainless Steel	0.2580	0.8130	0.0620	0.1140	0.0210	1350	lbs
WBEL025EH70301	1/4	Extra Heavy	301 Stainless Steel	0.2580	0.9380	0.0730	0.1300	0.0230	1450	lbs
WBEL03110-22-301	5/16	Standard	301 Stainless Steel	0.3170	0.6250	0.0220	0.0420	0.0150	89	lbs
WBEL031H45301	5/16	Heavy	301 Stainless Steel	0.3170	0.9380	0.0450	0.0720	0.0260	480	lbs
WBEL031L52301	5/16	Light	301 Stainless Steel	0.3220	0.6880	0.0500	0.0820	0.0130	1000	lbs
WBEL031M61301	5/16	Medium	301 Stainless Steel	0.3220	0.8130	0.0620	0.1000	0.0150	1100	lbs
WBEL031H70301	5/16	Heavy	301 Stainless Steel	0.3220	0.9380	0.0730	0.1150	0.0220	1500	lbs
WBEL037L61301	3/8	Light	301 Stainless Steel	0.3860	0.8130	0.0620	0.1000	0.0150	1300	lbs
WBEL037M70301	3/8	Medium	301 Stainless Steel	0.3860	0.9380	0.0730	0.1120	0.0200	1500	lbs
WBEL037M70301-PRESET	3/8	Medium	301 Stainless Steel	0.3860	0.9380	0.0730	0.0930	0.0200	1500	lbs
WBEL037H80301	3/8	Heavy	301 Stainless Steel	0.3860	1.0630	0.0830	0.1430	0.0240	2000	lbs
WBEL037M80301	3/8	Medium	301 Stainless Steel	0.3860	0.9380	0.0830	0.1130	0.0140	2100	lbs
WBEL037EH89301	3/8	Extra Heavy	301 Stainless Steel	0.3860	1.1880	0.0950	0.1580	0.0250	2600	lbs
WBEL050L40301	1/2	Light	301 Stainless Steel	0.5150	1.0630	0.0420	0.0900	0.0280	450	lbs
WBEL050L80301	1/2	Light	301 Stainless Steel	0.5150	1.0630	0.0830	0.1300	0.0190	2300	lbs
WBEL050M89301	1/2	Medium	301 Stainless Steel	0.5150	1.1880	0.0950	0.1520	0.0220	2800	lbs
WBEL050H98301	1/2	Heavy	301 Stainless Steel	0.5150	1.3130	0.0980	0.1570	0.0240	2870	lbs
WBEL050L90301	1/2	Light	301 Stainless Steel	0.5150	1.0630	0.0950	0.1420	0.0180	3300	lbs
WBEL050L109301	1/2	Light	301 Stainless Steel	0.5150	1.0630	0.1090	0.1350	0.0130	3800	lbs
WBEL050EH131301	1/2	Extra Heavy	301 Stainless Steel	0.5150	1.5000	0.1350	0.1830	0.0230	5200	lbs
WBEL05020125301	1/2	Standard	301 Stainless Steel	0.5150	1.2500	0.1250	0.1800	0.2000	5754	lbs
WBEL05018125301	1/2	Standard	301 Stainless Steel	0.5150	1.1250	0.1250	0.1700	0.0180	6000	lbs
WBEL062H131301	5/8	Heavy	301 Stainless Steel	0.6440	1.7500	0.1350	0.2000	0.0290	5486	lbs
WBEL062M131301	5/8	Medium	301 Stainless Steel	0.6440	1.5000	0.1350	0.1770	0.0200	5700	lbs
WBEL075L72301	3/4	Light	301 Stainless Steel	0.7730	1.5000	0.0720	0.1080	0.0300	1400	lbs
WBELM03-8-0.8-301	M3	Standard	301 Stainless Steel	3.2004 mm	8.0010 mm	0.8128 mm	1.0160 mm	0.0762 mm	1001	N
WBELM06-L-1.10-301	M6	Light	301 Stainless Steel	6.1976 mm	14.3002 mm	1.0668 mm	1.6510 mm	0.2540 mm	2313	N
WBELM10-L-1.5-301	M10	Light	301 Stainless Steel	10.2108 mm	20.6502 mm	1.5748 mm	2.3876 mm	0.3048 mm	6672	N
WBELM10-M-1.8-301	M10	Medium	301 Stainless Steel	10.2108 mm	24.0030 mm	1.8542 mm	2.9210 mm	0.4064 mm	7117	N

301 Stainless Steel Belleville Washers

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Diameter Belleville Type Outside Diameter Thickness Height Load Rating Item # Availability Price Quantity UOM

#10

Standard

0.3750

0.0200

0.0300

112

WBEL010S20301

5-7 Working Days

$0.14297/EA

See Quantity Discounts

#10 BELLEVILLE WASHER 010S20301, 301 SS

$0.14297/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.14297/EA

1/4

Standard

0.5000

0.0380

0.0470

400

WBEL025-8-38-301

5-7 Working Days

$0.3105/EA

See Quantity Discounts

1/4'' BELLEVILLE WASHER 4-8-38-301, 301 SS

$0.3105/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.3105/EA

1/4

Light

0.5630

0.0420

0.0720

600

WBEL025L42301

5-7 Working Days

$1.8819/EA

See Quantity Discounts

1/4'' LIGHT BELLEVILLE WASHER 4L42301, 301 SS

$1.8819/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.8819/EA

1/4

Medium

0.6880

0.0500

0.0900

650

WBEL025M52301

In Stock

$0.19629/EA

See Quantity Discounts

1/4'' MED BELLEVILLE WASHER 4M52301, 301 SS

$0.19629/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$0.19629/EA

1/4

Heavy

0.8130

0.0620

0.1140

1350

WBEL025H61301

5-7 Working Days

$0.58131/EA

See Quantity Discounts

1/4'' HVY BELLEVILLE WASHER 4H61301, 301 SS

$0.58131/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.58131/EA

1/4

Extra Heavy

0.9380

0.0730

0.1300

1450

WBEL025EH70301

5-7 Working Days

$0.837/EA

See Quantity Discounts

1/4'' XHVY BELLEVILLE WASHER 4EH70301, 301 SS

$0.837/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.837/EA

5/16

Medium

0.8130

0.0620

0.1000

1100

WBEL031M61301

5-7 Working Days

$0.42107/EA

See Quantity Discounts

5/16'' MED BELLEVILLE WASHER 5M61301, 301 SS

$0.42107/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.42107/EA

5/16

Heavy

0.9380

0.0730

0.1150

1500

WBEL031H70301

5-7 Working Days

$0.72158/EA

See Quantity Discounts

5/16'' HVY BELLEVILLE WASHER 5H70301, 301 SS

$0.72158/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.72158/EA

3/8

Light

0.8130

0.0620

0.1000

1300

WBEL037L61301

5-7 Working Days

$0.4559/EA

See Quantity Discounts

3/8'' LIGHT BELLEVILLE WASHER 6L61301, 301 SS

$0.4559/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.4559/EA

3/8

Medium

0.9380

0.0730

0.1120

1500

WBEL037M70301

5-7 Working Days

$0.49815/EA

See Quantity Discounts

3/8'' MED BELLEVILLE WASHER 6M70301, 301 SS

$0.49815/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.49815/EA

3/8

Heavy

1.0630

0.0830

0.1430

2000

WBEL037H80301

5-7 Working Days

$0.55499/EA

See Quantity Discounts

3/8'' HVY BELLEVILLE WASHER 6H80301, 301 SS

$0.55499/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.55499/EA

3/8

Medium

0.9380

0.0830

0.1130

2100

WBEL037M80301

5-7 Working Days

$0.38853/EA

See Quantity Discounts

3/8'' MED BELLEVILLE WASHER 6M80301, 301 SS

$0.38853/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.38853/EA

3/8

Extra Heavy

1.1880

0.0950

0.1580

2600

WBEL037EH89301

5-7 Working Days

$1.0877/EA

See Quantity Discounts

3/8'' XHVY BELLEVILLE WASHER 6EH89301, 301 SS

$1.0877/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.0877/EA

1/2

Light

1.0630

0.0830

0.1300

2300

WBEL050L80301

5-7 Working Days

$0.56916/EA

See Quantity Discounts

1/2'' LIGHT BELLEVILLE WASHER 8L80301, 301 SS

$0.56916/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.56916/EA

1/2

Medium

1.1880

0.0950

0.1520

2800

WBEL050M89301

5-7 Working Days

$1.0877/EA

See Quantity Discounts

1/2'' MED BELLEVILLE WASHER 8M89301, 301 SS

$1.0877/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.0877/EA

1/2

Heavy

1.3130

0.0980

0.1570

2870

WBEL050H98301

5-7 Working Days

$1.0877/EA

See Quantity Discounts

1/2'' HVY BELLEVILLE WASHER 8H98301, 301 SS

$1.0877/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$1.0877/EA

1/2

Light

1.0630

0.0950

0.1420

3300

WBEL050L90301

5-7 Working Days

$0.84213/EA

See Quantity Discounts

1/2'' LIGHT BELLEVILLE WASHER 8L90301, 301 SS

$0.84213/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.84213/EA

1/2

Light

1.0630

0.1090

0.1350

3800

WBEL050L109301

5-7 Working Days

$0.9315/EA

See Quantity Discounts

1/2'' LIGHT BELLEVILLE WASHER 8L109301, 301 SS

$0.9315/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.9315/EA

1/2

Extra Heavy

1.5000

0.1350

0.1830

5200

WBEL050EH131301

5-7 Working Days

$3.49488/EA

See Quantity Discounts

1/2'' XHVY BELLEVILLE WASHER 8EH131301, 301 SS

$3.49488/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$3.49488/EA

1/2

Standard

1.2500

0.1250

0.1800

5754

WBEL05020125301

5-7 Working Days

$0.9315/EA

See Quantity Discounts

1/2'' BELLEVILLE WASHER 820125301, 301 SS

$0.9315/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.9315/EA

1/2

Standard

1.1250

0.1250

0.1700

6000

WBEL05018125301

5-7 Working Days

$0.9824/EA

See Quantity Discounts

1/2'' BELLEVILLE WASHER 818125301, 301 SS

$0.9824/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.9824/EA

5/8

Heavy

1.7500

0.1350

0.2000

5486

WBEL062H131301

5-7 Working Days

$5.16281/EA

See Quantity Discounts

5/8'' HVY BELLEVILLE WASHER 10H131301, 301 SS

$5.16281/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$5.16281/EA

5/8

Medium

1.5000

0.1350

0.1770

5700

WBEL062M131301

5-7 Working Days

$2.673/EA

See Quantity Discounts

5/8'' MED BELLEVILLE WASHER 10M131301, 301 SS

$2.673/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$2.673/EA

3/4

Light

1.5000

0.0720

0.1080

1400

WBEL075L72301

In Stock

$1.625/EA

See Quantity Discounts

3/4'' LIGHT BELLEVILLE WASHER 12L72301, 301 SS

$1.625/EA

Qty

In Stock

Product Detail

Quantity	Price
Quantity	Price
1	$1.625/EA

Light

14.3002 mm

1.0668 mm

1.6510 mm

2313 N

WBELM06-L-1.10-301

5-7 Working Days

$0.72158/EA

See Quantity Discounts

M6 LIGHT BELLEVILLE WASHER M6-L-1.10-301, 301 SS

$0.72158/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.72158/EA

M10

Light

20.6502 mm

1.5748 mm

2.3876 mm

6672 N

WBELM10-L-1.5-301

5-7 Working Days

$0.6615/EA

See Quantity Discounts

M10 LIGHT BELLEVILLE WASHER M10-L-1.5-301, 301 SS

$0.6615/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.6615/EA

M10

Medium

24.0030 mm

1.8542 mm

2.9210 mm

7117 N

WBELM10-M-1.8-301

5-7 Working Days

$0.5882/EA

See Quantity Discounts

M10 MED BELLEVILLE WASHER M10-M-1.8-301, 301 SS

$0.5882/EA

Qty

5-7 Working Days

Product Detail

Quantity	Price
Quantity	Price
1	$0.5882/EA

Material	Tensile Strength	Yield Strength	Compressive Yield Strength	Fatigue Strength	Elongation at Break	Charpy Impact	Hardness	Hardness
Material
301 Stainless Steel
301 Stainless Steel		(@strain 0.200%)	(Longitudinal)	(Endurance limit; test details not reported)	(in 2" (50 mm))		Brinell	Rockwell C
Imperial	185100 psi	140000 psi	115000 psi	80100 psi	9%	111 ft-lb	382	41
Metric	1276 MPa	965 MPa	793 MPa	552 MPa	9%	150 J	382	41

Material	% Iron	% Chromium	% Nickel	% Manganese	% Silicon	% Carbon	% Nitrogen	% Phosphorous	% Sulfur
301 Stainless Steel	73	16.0 - 18.0	6.0 - 8.0	2	0.75	0.15	0.1	0.045	0.03